Deliverability & Spam
How to Keep the Original Sender Visible in Forwarded Email
Visible means Header From. SRS is envelope. Cut leftover rewrite hops. Then Reply goes to the author.
preserve original sender email forwarding
Read the guideMailerZ Blog
Domain email guides you can operate.
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Privacy & Masked Email
Why One Alias Per Website Can Reduce Spam Damage
one email alias per website: one MX set, leftover hosts gone, Gmail or Outlook as the store.
one email alias per website
Read the guideDNS Provider Guides
How to Configure Email DNS in Amazon Route 53
Ghost zones lie. Console checkmarks are not public truth.
email dns route 53
Read the guideCustom Domain + Gmail
Gmail Send Mail As: Custom Domain Setup With Authenticated SMTP
Send mail as is a Gmail client feature. It needs a paid identity. Copy host, port, and password from the dashboard. Do not use your Gmail password.
gmail send mail as custom domain
Read the guideBuyer Guides & Decision
How to Choose an Email Forwarding Provider: 25-Point Checklist
Score leftover MX, From rewrite, logs, and limits. Brand comes last.
choose email forwarding provider
Read the guideAgency & Multi-domain
How to Price Email Routing as an Agency Service
agency email routing service pricing: one MX set, leftover hosts gone, Gmail or Outlook as the store.
agency email routing service pricing
Read the guideCost & Workspace Alternatives
How Much Does Custom Domain Email Really Cost Per Year?
Write the yearly stack before MX. Domain you renew, inbox you already search, delivery layer that matches aliases and send-as. Do not price routes as seats.
custom domain email cost
Read the guidePrivacy & Masked Email
Email Aliases After a Data Breach: What You Can Learn
One alias per vendor is a sensor. After a leak, kill that string. Keep the domain.
email alias data breach
Read the guideCustom Domain + Gmail
Why Gmail Shows 'via' on Forwarded Mail and How to Avoid It
via is Gmail’s UI, not an MX record. Do not rewrite From to hide it. Prove the hop. Do not promise it will never appear.
gmail forwarded email via
Read the guideSPF DKIM DMARC SRS ARC
SPF Explained for Email Forwarding: Why Forwarders Complicate It
SPF judges the hop, not the visible From. Naive forwards fail at Gmail. MailerZ rewrites MAIL FROM only.
spf email forwarding
Read the guideDeliverability & Spam
How to Prove Whether the Forwarder or Destination Rejected a Message
Name the hop. Empty, accept-fail, or destination-fail. Do not toggle MX to guess.
email forwarding rejection diagnosis
Read the guideTroubleshooting & SMTP Codes
Unknown Recipient Held: What It Means and What to Do
HOLD is a default, not an outage. Map real roles. Leave dictionary guesses held.
unknown recipient held
Read the guideBusiness Role Addresses
How to Set Up support@ Without a Shared Mailbox Password
Shared passwords are how support gets pwned. Use a route, not a joint login.
support email without shared mailbox
Read the guideSecurity & Abuse
Email Routing and GDPR: What Data Is Processed?
Name the classes and the store window. Do not invent badges.
email forwarding gdpr
Read the guideDeveloper & Website SMTP
How to Send WordPress Contact Form Email Through Custom Domain SMTP
Plugins that use php mail never reach our signer. Point the plugin at authenticated SMTP. Free cannot send-as.
wordpress contact form smtp custom domain
Read the guidePersonal Domains
How to Track Who Leaked Your Email Using Unique Aliases
track email leak with aliases: one MX set, leftover hosts gone, Gmail or Outlook as the store.
track email leak with aliases
Read the guideSecurity & Abuse
TLS for SMTP: What It Protects and What It Does Not
Hop encryption. Not E2E. Not placement. Leave TLS on.
smtp tls security
Read the guideSPF DKIM DMARC SRS ARC
How to Check SPF Without Creating Duplicate Records
Two v=spf1 TXT records is a permerror. Look up in public. Merge. Do not let a wizard add a second SPF.
duplicate spf records
Read the guideDNS and MX
How Long Do MX Record Changes Take to Propagate?
Wait the old TTL. Leftover hosts are not propagation. Two resolvers, then a third mailbox.
mx record propagation
Read the guidePrivacy & Masked Email
Why Some Websites Block Disposable or Alias Domains
Own the zone if the signup must succeed. Disposable lists are real. MailerZ is not a disposable host.
websites block email aliases
Read the guideEmail Forwarding Fundamentals
Does Email Forwarding Affect SPF, DKIM or DMARC?
SPF is the hop. DKIM is the signature. DMARC is alignment. Do not rewrite Header From to chase SPF.
email forwarding spf dkim dmarc
Read the guideCatch-all & Routing
Catch-All Email for Agencies Managing Many Client Domains
One noisy client is not a reason to forward unknowns on every zone you operate.
catch all agency email
Read the guideCustom Domain + Gmail
How to Use a Custom Domain Email in Gmail Without Google Workspace
Keep the Gmail store. Point MX at a forwarder. Prove inbound from another mailbox. Pay only if replies must show the domain.
custom domain email gmail without google workspace
Read the guideBusiness Role Addresses
How to Set Up billing@ Without Buying Another Mailbox
Print billing@. Keep Gmail. Do not buy a seat for an invoice noun.
billing email alias
Read the guideSMTP Send-as
Why Your Custom From Address Reverts to Gmail or Outlook
Open the received copy. If From is Gmail or Microsoft, attach paid SMTP and pick the approved identity. Catch-all will not fix it.
custom from address not working
Read the guide
